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mulle-objc-unarchive
executable file
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mulle-objc-unarchive
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#! /usr/bin/env mulle-bash
#
# this script unpacks an .a file and creates a list of defined methods
# for each .o file
#
MULLE_EXECUTABLE_VERSION=0.9.1
MULLE_EXECUTABLE_FUNCTIONS_MIN="3.9"
MULLE_EXECUTABLE_FUNCTIONS_MAX="4"
usage()
{
cat <<EOF >&2
Usage:
${MULLE_USAGE_NAME} [options] [library] ...
Unarchive the given static libraries and prepare them for optimization.
If no libraries are given, ${MULLE_USAGE_NAME} will unarchive all static
libraries contained in \${MULLE_SDK_DIR}/lib unless a different directory
has been specified with --library-path.
Options:
--library-path <dir> : list of directories to unarchive libraries from
--unarchive-dir <dir> : where to unarchive libraries to
EOF
options_technical_flags_usage | sort >&2
exit 1
}
r_shlib_cflags()
{
case "${MULLE_UNAME}" in
darwin)
RVAL="-fno-common"
;;
*)
RVAL="-fPIC -fno-common"
;;
esac
}
r_shlib_ldflags()
{
case "${MULLE_UNAME}" in
darwin)
RVAL="-dynamiclib -all_load -Os -flat_namespace -undefined suppress"
;;
*)
RVAL="-shared"
;;
esac
}
#
# read symbols from .o file, figure out the ones that we need to "spoof"
# so that we can dummy link it
#
nm_global_undefined_names()
{
local filename="$1"
case "${MULLE_UNAME}" in
darwin)
exekutor nm -g -u -j "${filename}"
;;
linux|*)
# -p no sort, -P posix style (name first)
exekutor nm -g --undefined-only -p -P "${filename}" | awk '{ print $1} '
;;
esac
}
create_undefined_linkage_c()
{
local infile="$1"
local symbols
# global, undefined, no type info
case "${MULLE_UNAME}" in
darwin)
symbols="`nm_global_undefined_names "${infile}" | sed 's/^_//'`" || exit 1
;;
*)
symbols="`nm_global_undefined_names "${infile}"`" || exit 1
;;
esac
local i
#
# if we redefine standard library symbols, the compiler is not
# happy so we copy the definitions here
#
# egrep '^LIBBUILTIN' mulle-clang/include/clang/Basic/Builtins.def | \
# sed s'/^LIBBUILTIN(\([^,]*\).*$/\1/' | \
# sort | \
# sed s'/\(.*\)/ \1) ;;/'
#
for i in ${symbols}
do
case $i in
# NSLog) ;;
# NSLogv) ;;
_Block_object_assign) ;;
_Block_object_dispose) ;;
_Exit) ;;
__cospi);;
__cospif) ;;
__exp10) ;;
__exp10f) ;;
__finite) ;;
__finitef) ;;
__finitel) ;;
__sigsetjmp) ;;
__sinpi);;
__sinpif) ;;
__tanpi) ;;
__tanpif) ;;
_byteswap_uint64) ;;
_byteswap_ulong) ;;
_byteswap_ushort);;
_longjmp) ;;
_setjmp) ;;
_setjmpex) ;;
abs) ;;
acos) ;;
acosf) ;;
acosh) ;;
acoshf) ;;
acoshl) ;;
acosl) ;;
alloca);;
asin) ;;
asinf) ;;
asinh) ;;
asinhf) ;;
asinhl) ;;
asinl) ;;
atan) ;;
atan2) ;;
atan2f) ;;
atan2l) ;;
atanf) ;;
atanh);;
atanhf) ;;
atanhl) ;;
atanl) ;;
bzero) ;;
cabs) ;;
cabsf) ;;
cabsl) ;;
cacos) ;;
cacosf) ;;
cacosh) ;;
cacoshf);;
cacoshl) ;;
cacosl) ;;
calloc) ;;
carg) ;;
cargf) ;;
cargl) ;;
casin) ;;
casinf) ;;
casinh) ;;
casinhf) ;;
casinhl);;
casinl) ;;
catan) ;;
catanf) ;;
catanh) ;;
catanhf) ;;
catanhl) ;;
catanl) ;;
cbrt) ;;
cbrtf) ;;
cbrtl) ;;
ccos) ;;
ccosf);;
ccosh) ;;
ccoshf) ;;
ccoshl) ;;
ccosl) ;;
ceil) ;;
ceilf) ;;
ceill) ;;
cexp) ;;
cexpf) ;;
cexpl) ;;
cimag) ;;
cimagf);;
cimagl) ;;
clog) ;;
clogf) ;;
clogl) ;;
conj) ;;
conjf) ;;
conjl) ;;
copysign) ;;
copysignf) ;;
copysignl) ;;
cos);;
cosf) ;;
cosh) ;;
coshf) ;;
coshl) ;;
cosl) ;;
cpow) ;;
cpowf) ;;
cpowl) ;;
cproj) ;;
cprojf) ;;
cprojl) ;;
creal) ;;
crealf);;
creall) ;;
csin) ;;
csinf) ;;
csinh) ;;
csinhf) ;;
csinhl) ;;
csinl) ;;
csqrt) ;;
csqrtf) ;;
csqrtl) ;;
ctan) ;;
ctanf);;
ctanh) ;;
ctanhf) ;;
ctanhl) ;;
ctanl) ;;
erf) ;;
erfc) ;;
erfcf) ;;
erfcl) ;;
erff) ;;
erfl) ;;
exp) ;;
exp2) ;;
exp2f) ;;
exp2l);;
expf) ;;
expl) ;;
expm1) ;;
expm1f) ;;
expm1l) ;;
fabs) ;;
fabsf) ;;
fabsl) ;;
fdim) ;;
fdimf) ;;
fdiml) ;;
finite);;
finitef) ;;
finitel) ;;
floor) ;;
floorf) ;;
floorl) ;;
fma) ;;
fmaf) ;;
fmal) ;;
fmax) ;;
fmaxf) ;;
fmaxl) ;;
fmin) ;;
fminf) ;;
fminl) ;;
fmod) ;;
fmodf) ;;
fmodl) ;;
fprintf) ;;
frexp) ;;
frexpf) ;;
frexpl) ;;
fscanf) ;;
getcontext) ;;
hypot) ;;
hypotf) ;;
hypotl) ;;
ilogb) ;;
ilogbf) ;;
ilogbl) ;;
index) ;;
isalnum) ;;
isalpha) ;;
isblank) ;;
iscntrl) ;;
isdigit) ;;
isgraph) ;;
islower) ;;
isprint) ;;
ispunct) ;;
isspace) ;;
isupper) ;;
isxdigit) ;;
labs) ;;
ldexp) ;;
ldexpf) ;;
ldexpl) ;;
lgamma) ;;
lgammaf) ;;
lgammal) ;;
llabs) ;;
# llrint) ;;
# llrintf) ;;
# llrintl) ;;
llround) ;;
llroundf) ;;
llroundl) ;;
log) ;;
log10) ;;
log10f) ;;
log10l) ;;
log1p) ;;
log1pf) ;;
log1pl) ;;
log2) ;;
log2f) ;;
log2l) ;;
logb) ;;
logbf) ;;
logbl) ;;
logf) ;;
logl) ;;
longjmp) ;;
lrint) ;;
lrintf) ;;
lrintl) ;;
lround) ;;
lroundf) ;;
lroundl) ;;
malloc) ;;
memchr) ;;
memcmp) ;;
memcpy) ;;
memmove) ;;
memset) ;;
modf) ;;
modff) ;;
modfl) ;;
nan) ;;
nanf) ;;
nanl) ;;
nearbyint) ;;
nearbyintf) ;;
nearbyintl) ;;
nextafter) ;;
nextafterf) ;;
nextafterl) ;;
nexttoward) ;;
nexttowardf) ;;
nexttowardl) ;;
objc_assign_global) ;;
objc_assign_ivar) ;;
objc_assign_strongCast) ;;
objc_assign_weak) ;;
objc_enumerationMutation) ;;
objc_exception_extract) ;;
objc_exception_match) ;;
objc_exception_throw) ;;
objc_exception_tryenter) ;;
objc_exception_tryexit) ;;
objc_getClass) ;;
objc_getMetaClass) ;;
objc_msgSend) ;;
objc_msgSendSuper) ;;
objc_msgSendSuper_stret) ;;
objc_msgSend_fp2ret) ;;
objc_msgSend_fpret) ;;
objc_msgSend_stret) ;;
objc_read_weak) ;;
objc_sync_enter) ;;
objc_sync_exit) ;;
pow) ;;
powf) ;;
powl) ;;
printf) ;;
qsetjmp) ;;
realloc) ;;
remainder);;
remainderf) ;;
remainderl) ;;
rindex) ;;
rint) ;;
rintf) ;;
rintl) ;;
round) ;;
roundf) ;;
roundl) ;;
savectx);;
scalbln) ;;
scalblnf) ;;
scalblnl) ;;
scalbn) ;;
scalbnf) ;;
scalbnl) ;;
scanf) ;;
setjmp) ;;
setjmp_syscall);;
siglongjmp) ;;
sigsetjmp) ;;
sin) ;;
sinf) ;;
sinh) ;;
sinhf) ;;
sinhl) ;;
sinl) ;;
snprintf) ;;
sprintf) ;;
sqrt);;
sqrtf) ;;
sqrtl) ;;
sscanf) ;;
stpcpy) ;;
stpncpy) ;;
strcasecmp) ;;
strcat) ;;
strchr) ;;
strcmp) ;;
strcpy);;
strcspn) ;;
strdup) ;;
strerror) ;;
strlcat) ;;
strlcpy) ;;
strlen) ;;
strncasecmp) ;;
strncat) ;;
strncmp);;
strncpy) ;;
strndup) ;;
strpbrk) ;;
strrchr) ;;
strspn) ;;
strstr) ;;
strtok) ;;
strxfrm) ;;
tan) ;;
tanf) ;;
tanh);;
tanhf) ;;
tanhl) ;;
tanl) ;;
tgamma) ;;
tgammaf) ;;
tgammal) ;;
tolower) ;;
toupper) ;;
trunc) ;;
truncf) ;;
truncl);;
vfork) ;;
vfprintf) ;;
vfscanf) ;;
vprintf) ;;
vscanf) ;;
vsnprintf) ;;
vsprintf) ;;
vsscanf) ;;
wcschr);;
wcscmp) ;;
wcslen) ;;
wcsncmp) ;;
wmemchr) ;;
wmemcmp) ;;
# CRT symbols
_GLOBAL_OFFSET_TABLE_) ;;
mulle_objc_loadinfo_enqueue_nofail) ;;
*)
echo "void $i() {}"
;;
esac
done
}
#
# create a .o file with (almost) all the symbols that
# are missing from "$1"
#
create_undefined_linkage()
{
log_entry "create_undefined_linkage" "$@"
local infile="$1"
local outfile="$2"
local text
text="`create_undefined_linkage_c "${infile}"`"
if [ -z "${text}" ]
then
log_fluff "No undefined symbols to spoof for \"${infile}\""
return 1
fi
local cfile
local folder
r_dirname "${outfile}"
folder="${RVAL}"
cfile="${folder}/`basename -- "${outfile}" .o`".c
redirect_exekutor "${cfile}" echo "${text}"
local cflags
r_shlib_cflags
cflags="${RVAL}"
log_fluff "Compile undefined symbol linkage \"${cfile}\"..."
exekutor mulle-clang ${cflags} -w \
-c \
-o "${outfile}" \
"${cfile}" || exit 1
}
r_name_from_library()
{
log_entry "r_name_from_library" "$@"
local library="$1"
# remove extension
r_extensionless_basename "${library}"
# remove prefix
RVAL="${RVAL#${MULLE_PLATFORM_LIBRARY_PREFIX}}"
# remove Standalone suffix (old)
RVAL="${RVAL%Standalone}"
RVAL="${RVAL-standalone}"
}
r_foldername_from_library()
{
log_entry "r_foldername_from_library" "$@"
local library="$1"
local prefix="$2"
r_name_from_library "${library}"
RVAL="${prefix}${RVAL}.d"
}
#
# create a shared library for each .o file
#
create_shlibs()
{
log_entry "create_shlibs" "$@"
local folder="$1"
local i
local name
local undefined
local files
local shlib
local ext
local ldflags
ext="${MULLE_PLATFORM_LIBRARY_SUFFIX_DYNAMIC}"
r_shlib_ldflags
ldflags="${RVAL}"
for i in "${folder}/"*.o
do
case "${i}" in
"${folder}/*.o")
log_warning "No .o files found in \"${folder}\""
continue
;;
#
# can happen in non-optimizable case, where we still produce
# method-db.csv and class-db.csv
#
"${folder}/MulleObjCLoader"*)
continue
;;
esac
r_basename "$i"
name="${RVAL%.o}"
undefined="${folder}/${name}.undef.o"
files="${i}"
shlib="${folder}/${name}${ext}"
if create_undefined_linkage "${i}" "${undefined}"
then
files="${files} ${undefined}" # order important for linux ?
fi
log_fluff "Create shlib \"${shlib}\"..."
exekutor mulle-clang ${ldflags} ${files} -o "${shlib}" \
|| fail "Failed to produce \"${shlib}\", can't optimize \"${name}\""
if [ "${OPTION_KEEP_TMP}" = "YES" ]
then
exekutor mv "${undefined}" "${undefined}.tmp"
else
remove_file_if_present "${undefined}"
fi
done
return 0
}
unpack_library_into_folder()
{
log_entry "unpack_library_into_folder" "$@"
local library="$1"
local folder="$2"
if [ -d "${folder}" ]
then
exekutor rm -rf "${folder}" || return 1
fi
case "${library}" in
/*|~*)
;;
*)
library="`pwd -P`/${library}"
;;
esac
(
mkdir_if_missing "${folder}" &&
exekutor cd "${folder}" &&
exekutor ar x "${library}"
) || return 1
}
emit_loader_source()
{
log_entry "emit_loader_source" "$@"
name="$1"
cat <<EOF
#include <MulleObjC/MulleObjC.h>
@implementation MulleObjCLoader( ${name})
+ (struct _mulle_objc_dependency *) dependencies
{
static struct _mulle_objc_dependency dependencies[] =
{
#include "dependencies-objc-loader.inc"
#include "class-objc-loader.inc"
#include "category-objc-loader.inc"
{ MULLE_OBJC_NO_CLASSID, MULLE_OBJC_NO_CATEGORYID }
};
return( dependencies);
}
@end
EOF
}
prepare_for_optimizer()
{
log_entry "prepare_for_optimizer" "$*"
local folder="$1"
local infofolder="$2"
local library="$3"
local name
local includedir
local libpath
local libdir
r_absolutepath "${library}"
libpath="${RVAL}"
r_dirname "${libpath}"
libdir="${RVAL}"
r_name_from_library "${library}"
name="${RVAL}"
includedir="${libdir}/../include/${name}"
r_simplified_absolutepath "${includedir}"
includedir="${RVAL}"
local count
local has_objc
local loaderinc
loaderinc="${includedir}/objc-loader.inc"
count="`ls -1 "${folder}/MulleObjCLoader"*.o 2> /dev/null | wc -l | awk '{ print $1 }'`"
case "${count}" in
1)
if [ ! -f "${loaderinc}" ]
then
log_warning "\"${name}\" is not optimizable as \"${loaderinc}\" was not found"
exekutor touch "${infofolder}/.unoptimizable" || exit 1
return
fi
# fall thru
;;
0)
#
# if it's a plain c library, memorize this
#
has_objc="`mulle-objc-lista -i "${libpath}" 2> /dev/null`"
if [ -z "${has_objc}" ]
then
log_fluff "\"${name}\" has been deemed C only"
exekutor touch "${infofolder}/.c_only" || exit 1
else
log_warning "\"${name}\" is not optimizable as it contains no MulleObjCLoader category .o file"
exekutor touch "${infofolder}/.unoptimizable" || exit 1
fi
return
;;
*)
log_warning "\"${name}\" is not optimizable as it contains multiple MulleObjCLoader category .o files"
exekutor touch "${infofolder}/.unoptimizable" || exit 1
return
;;
esac
local loader
local filename
local loadername
local categoryname
loader="`ls -1 "${folder}/MulleObjCLoader"*.o`"
r_basename "${loader}"
filename="${RVAL}"
loadername="${filename%%.*}"
categoryname="${loadername/MulleObjCLoader[ _+-]/}"
if [ -z "${categoryname}" ]
then
log_info "\"${name}\" is not optimizable as it contains the MulleObjCLoader class .o file"
exekutor touch "${infofolder}/.unoptimizable" || exit 1
return
fi
if [ "${categoryname}" != "${name}" ]
then
log_warning "\"${name}\" is not optimizable as it contains \"${filename}\", but expected \"MulleObjCLoader+${name}.o\""
exekutor touch "${infofolder}/.unoptimizable" || exit 1
return 1
fi
log_fluff "Loader \"${filename}\" and \"objc-loader.inc\" found"
# keep comments only
redirect_exekutor "${folder}/dependencies_db.csv" \
sed 's|^.*// *||' "${loaderinc}"
# Grab MulleObjCLoader statements (47a9beb6->MulleObjCLoader)
exekutor egrep '// *47a9beb6;' "${loaderinc}" \
| redirect_exekutor "${infofolder}/dependencies-objc-loader.inc" fgrep -v ';;'
redirect_exekutor "${folder}/MulleObjCLoader+${name}.m" \
emit_loader_source "${name}"
#
# remove the loader that we will regenerate later
#
exekutor rm -f "${loader}" || fail "Could not remove \"${loader}\""
return 0
}
unpack_library()
{
log_entry "unpack_library" "$@"
local library="$1"
local folder
local infofolder
local name
[ ! -f "${library}" ] && fail "\"${library}\" not found"
r_foldername_from_library "${library}" "${UNARCHIVE_PREFIX}"
folder="${RVAL}"
if [ "${OPTION_FORCE}" = "NO" ] && [ "${folder}/.unpack_done" -nt "${library}" ]
then
log_verbose "${folder} is up to date"
return 0
fi
r_name_from_library "${library}"
name="${RVAL}"
log_info "Unpacking ${C_MAGENTA}${C_BOLD}${name}${C_VERBOSE} ..."
unpack_library_into_folder "${library}" "${folder}" || fail "unpack failed"
if [ "${OPTION_JUST_UNPACK}" = 'YES' ]
then
log_verbose "Unpacked ${C_MAGENTA}${C_BOLD}${name}${C_VERBOSE}"
else
r_foldername_from_library "${library}" "${UNARCHIVE_INFO_PREFIX}"
infofolder="${RVAL}"
mkdir_if_missing "${infofolder}"
prepare_for_optimizer "${folder}" "${infofolder}" "${library}"
if [ ! -f "${infofolder}/.c_only" ]
then
if [ ! -f "${infofolder}/.unoptimizable" ]
then
create_shlibs "${folder}"
log_verbose "Unpacked ${C_MAGENTA}${C_BOLD}${name}${C_VERBOSE} as ObjC"
#
# only in this case do we want to post-process
#
echo "${library}"
else
log_verbose "Unpacked ${C_MAGENTA}${C_BOLD}${name}${C_VERBOSE} as unoptimizable ObjC"
fi
else
log_verbose "Unpacked ${C_MAGENTA}${C_BOLD}${name}${C_VERBOSE} as C"
fi
fi
exekutor touch "${folder}/.unpack_done"
# global marker that something has changed
exekutor touch "${UNARCHIVE_PREFIX}.unpack_done"
}
unpack_all()
{
log_entry "unpack_all" "$@"
while [ $# -ne 0 ]
do
unpack_library "$1" || return 1
shift
done
}
# run this with "folder" as PWD
create_method_csv()
{
log_entry "create_method_csv" "$*"
local folder="$1"
local ext
local ofile
local name
local sedexpr
local shlib
local libname
ext="${MULLE_PLATFORM_LIBRARY_SUFFIX_DYNAMIC}"
# namespacing not needed because files are optimized within their folder only
# r_basename "${folder}"
# libname="${RVAL}"
(
cd "${folder}" || exit 1
for shlib in *"${ext}"
do
if [ "${shlib}" = "*${ext}" ]
then
log_fluff "No shared libraries were produced"
continue
fi
r_basename "${shlib}" "${ext}"
name="${RVAL%${ext}}"
# r_filepath_concat "${folder}" "${name}.o"
ofile="${name}.o"
log_fluff "Create entries for methods of \"${ofile}\"..."
sedexpr="s|\$|;${ofile}|"
( rexekutor mulle-objc-list -T "${shlib}" | rexekutor sed -e "${sedexpr}" ) || exit 1
done
)
}
# run this with "folder" as PWD
create_class_csv()
{
log_entry "create_class_csv" "$*"
local folder="$1"
local ext
local i
local name
local sedexpr
local shlib
local ofile
# local libname
ext="${MULLE_PLATFORM_LIBRARY_SUFFIX_DYNAMIC}"
# r_basename "${folder}"
# libname="${RVAL}"
(
cd "${folder}" || exit 1
for shlib in *"${ext}"
do
if [ "${shlib}" = "*${ext}" ]
then
log_fluff "No shared libraries were produced"
continue
fi
r_basename "${shlib}" "${ext}"
name="${RVAL%${ext}}"
# r_filepath_concat "${folder}" "${name}.o"
ofile="${name}.o"
log_fluff "Create entries for classes of \"$ofile\"..."
sedexpr="s|\$|;${ofile}|"
( exekutor mulle-objc-list -C "${shlib}" | exekutor sed "${sedexpr}" ) \
|| fail "mulle-objc-list \"${shlib}\" failed"
done
)
}
create_method_csv_db()
{
log_entry "create_method_csv_db" "$*"
local folder="$1"
local infofolder="$2"
log_fluff "Add methods in \"${folder}\" ..."
redirect_exekutor "${infofolder}/method_db.csv" \
create_method_csv "${folder}" || fail "failed to produce method_db.csv"
}
create_class_csv_db()
{
log_entry "create_class_csv_db" "$*"
local folder="$1"
local infofolder="$2"
log_fluff "Add classes in \"${folder}\" ..."
redirect_exekutor "${infofolder}/class_db.csv" \
create_class_csv "${folder}" || fail "failed to produce class_db.csv"
}